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Ashly Audio Pema 4250 4-Channel Power Amplifier 4 x 250W @ 4 ohms with Protea DSP
Part # pema4250
Model # Pema 4250

The Ashly Pema 4250 DSP Processor is a Protea-Equipped Media Amplifiereither 4-channel at 250 Watts per channel. Pema is a matrix mixer—all Pema models have a full 8-in x 8-out matrix mixer, where any input can be assigned to any output or outputs. Pema is a digital signal processor.

Availability: Usually arrives in 5-9 business days.

Please be aware that global supply shortages outside our control may interfere with our normal delivery times and product availability. For more information, email [email protected] or call us at 888-256-4112.

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Description

Details

The Ashly Pema 4250 DSP Processor is a Protea-Equipped Media Amplifiereither 4-channel at 250 Watts per channel. Pema is a matrix mixer—all Pema models have a full 8-in x 8-out matrix mixer, where any input can be assigned to any output or outputs. Pema is a digital signal processor. In addition to the full Protea suite of DSP settings, we have added four new features to Pemagain sharing automatic microphone mixing, an automatic feedback suppressor, ambient noise detection and adjustment and a real-time clock with an event scheduler.

Pema features Ashly's energy efficient Class-D amplifier topology with a switching power supplyand is over 80% energy efficient out of the box. Maximize the energy efficiency of your audio system by using the event scheduler to either put the Pema in stand-by mode or turn it off completely.

Features

Features

  • 8 built-in mic pre’s
  • CobraNet® and Dante® network audio fully supported
  • Gain sharing automatic microphone mixing (Automixer)
  • Automatic feedback suppression
  • Ambient noise compensation
  • Dedicated telephone/PBX input
  • Dual RCA and balanced euroblock inputs
  • Post DSP AUX line level outputs
  • Stereo summed to mono
  • Event scheduling (RTC)
  • Adjustable HP/LP filters
  • Built-in pink/white noise & sine wave generator
  • Full suite of Ashly Protea DSP
  • Hot-plug DSP placement
  • 96kHz or 48kHz sample rate
  • 32-Bit SHARC DSP
  • 24-Bit A/D–D/A audio resolution
  • 15V phantom power for mic inputs
  • Full control using Ashly software over 10/100 baseT Ethernet
  • Easy and intuitive user interface
  • Automatic DHCP network IP configuration
  • Euroblock connectors for preset recall, DC remote level control and serial data control
  • External control via Ashly standard wall remotes, Ashly Ethernet wall remotes or Ashly Remote iPad® App
  • Level control via variable DC control voltage
  • Stand-By mode activation via contact closure
  • Multi-level Security Safety/Compliance: cTUVus, CE, FCC, RoHS
Specification
Power Output Per Channel
4Ω 20Hz-20kHz 1%THD250W
Line Current Draw (120V, all channels driven)
Line Current, Standby Mode190ma
Line Current, Idle (no signal)540ma
Line Current, Typical (1/8 power pink noise)2.85A
Line Current, Maximum (1/3 power sine wave)3.00A
Thermal Dissipation (all channels driven)
BTU/hr, Standby Mode46.7
BTU/hr, Idle (no signal)123
BTU/hr, Typ (1/8 power pink noise)341
BTU/hr, Max (1/3 power sine wave)378
General
Input Sensitivity (low Z models)6.2dBu
Voltage Gain (low Z models)26dB
Voltage Gain (100V models)35dB
Damping Factor (8 ohm load, <1kHz)>250
Distortion (SMPTE, typical)<0.5%
Distortion (THD-N, typical) 8Ω 10dB below rated power<0.5% (20Hz - 20kHz)
Channel Separation (dB from full output, 1kHz)-80dB
Signal to Noise (20Hz-20KHz, unweighted)>102dB
Frequency Response20Hz-20kHz, +/-1dB
Mic/Line Input Impedance4.8K
Mic/Line Maximum Input Level+21dBu
Mic/Line Preamp Gain0, +20dB, +40dB, +60dB
Mic/Line Phantom Power+15V, channel
Summed Mono Input Impedance3.16K
Summed Mono Maximum Input Level+11dBu
TEL-PBX Input Impedance3.9K
TEL-PBX Maximum Input Level+21dBu
Preamp Output Maximum Level+8dBu
AUX Output Maximum Level+20dBu
Balanced Mic/Line Input ConnectorEuroblock 3.5mm
Unbalanced Summed Mono Input ConnectorDual RCA
Channel 1 TEL-PBX Input ConnectorEuroblock 3.5mm
Preamp/AUX Output ConnectorEuroblock 3.5mm
Speaker Output ConnectorEuroblock 7.62mm
Dimensions (H x W x D)3.50" (89 mm) x 19" (483 mm) x 16.84" (428 mm)
Unit Weight23.5 lbs (10.7 kg)
Shipping Weight30.9 lbs (14 kg)
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